These are actually good sites to look for a job, but if the op has no skill to offer on these platforms then these won't be of much help to him but it is still a good post. Thanks for sharing it with us. Although we can start making money online with few skills and some good communication skills and yeah with some luck too. I hope OP would find some job I don't know where he lives, I mean I thought people mostly living in Europe countries don't have to struggle about finding a job.
Skill' it is preparation meeting opportunity but when a person is without any useful skill an opportunity doesn't seem to become an opportunity for that individual. And no where in the world is all that perfect as there will certainly be some defects somehow, just that somewhere it will me very minimal, else where it will be very extreme (I mean the job issues).
And worse of it in Op case to his difficulty in finding a job as he wish is as a result of his health problem. According to the Op he's suffering from a leg and back health challenge and you and I knows that no manager will want to hire such a person, for them it's a liability in the search for efficiency and great productivity.
Therefore @AGD, it's not too late despite what you may be going through at the moment, pick up yourself because if you don't then know one will do it for you. Take opportunity of the internet and learn an online skill, you can use YouTube and other channels to do so, and in no time you won't have to be beg for any supports.
Finding oneself under such condition it's crazy I know, but best to have a digital skill where you can work remotely from home with any organization at all, in that way your physical challenge won't matter to your employer so far as you're delivering your task as demanded.